Microchip Technology

AT28HC256-90FM/883

AT28HC256-90FM/883 Description

The AT28HC256-90FM/883 is a 256Kbit EEPROM memory IC chip designed for high-performance applications requiring reliable non-volatile storage. Manufactured by Microchip Technology, this device features a parallel memory interface and is organized as 32K x 8, providing efficient data access and storage capabilities. The chip operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with various power supply systems.

With an access time of 90 nanoseconds, the AT28HC256-90FM/883 delivers rapid data retrieval, making it suitable for time-sensitive applications. The write cycle time for both word and page operations is 10 milliseconds, ensuring efficient data writing without compromising performance. This EEPROM device is housed in a surface-mount package, specifically a 28-pin flat pack, which is ideal for compact and space-constrained designs.

The AT28HC256-90FM/883 is classified under ECCN 3A001A2C and HTSUS 8542.32.0051, and it complies with REACH regulations, being unaffected by the REACH status. The moisture sensitivity level (MSL) is rated at 3, allowing for a 168-hour exposure period, which is beneficial for manufacturing processes involving reflow soldering.

AT28HC256-90FM/883 Features

• Memory Size and Organization: The AT28HC256-90FM/883 offers a total memory size of 256Kbit, organized as 32K x 8, providing a balanced trade-off between memory capacity and data width.
• Fast Access Time: With an access time of 90 nanoseconds, this EEPROM ensures quick data retrieval, which is crucial for applications requiring real-time data processing.
• Efficient Write Cycle Time: The 10-millisecond write cycle time for both word and page operations ensures efficient data writing, making it suitable for applications with frequent write operations.
• Wide Operating Voltage Range: The device operates within a supply voltage range of 4.5V to 5.5V, providing flexibility and compatibility with various power supply systems.
• Surface-Mount Packaging: The 28-pin flat pack surface-mount package is ideal for compact designs, enabling the integration of the device into space-constrained systems.
• Compliance and Reliability: The AT28HC256-90FM/883 complies with REACH regulations and has an MSL rating of 3, ensuring reliability and compatibility with standard manufacturing processes.

AT28HC256-90FM/883 Applications

The AT28HC256-90FM/883 is well-suited for a variety of applications that require reliable non-volatile memory storage. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems where data retention is critical, such as firmware storage and configuration data.
• Industrial Control Systems: Suitable for industrial applications requiring robust and reliable memory solutions for storing calibration data and operational parameters.
• Telecommunications: Used in telecom equipment for storing configuration settings and critical data that need to be preserved across power cycles.
• Consumer Electronics: Applicable in consumer devices where non-volatile memory is needed for storing user settings and system configurations.
• Automotive Electronics: Ideal for automotive applications where data integrity and reliability are paramount, such as engine control units and infotainment systems.

Conclusion of AT28HC256-90FM/883

The AT28HC256-90FM/883 is a high-performance EEPROM memory IC chip that offers a combination of fast access times, efficient write cycles, and a wide operating voltage range. Its surface-mount packaging and compliance with industry standards make it a reliable choice for a variety of applications. Whether used in embedded systems, industrial control, telecommunications, consumer electronics, or automotive applications, the AT28HC256-90FM/883 provides the necessary non-volatile memory storage with the reliability and performance required for modern electronic systems.